<template>
  <panel-head :route="route" />
  <div class="btns">
    <el-button :icon="Plus" type="primary" @click="open(null)" size="small">新增</el-button>
  </div>
  <el-table :data="tableData.list" style="width: 100%">
    <el-table-column prop="id" label="id" />
    <el-table-column prop="name" label="昵称" />
    <el-table-column prop="permissionName" label="菜单权限" width="500px" />
    <el-table-column label="操作">
      <template #default="scope">
        <el-button type="primary" @click="open(scope.row)">编辑</el-button>
      </template>
    </el-table-column>
  </el-table>
  <div class="pagination-info">
    <el-pagination
      v-model:current-page="paginationData.pageNum"
      :page-size="paginationData.pageSize"
      :background="true"
      size="small"
      layout="total, prev, pager, next"
      :total="tableData.total"
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
    />
  </div>
  <el-dialog
    v-model="dialogFormVisible"
    :before-close="beforeClose"
    title="添加权限"
    width="500"
  >
    <el-form
      ref="formRef"
      label-width="100px"
      label-position="left"
      :model="form"
      :rules="rules"
    >
      <el-form-item prop="id" v-show="false">
        <el-input v-model="form.id" />
      </el-form-item>
      <el-form-item label="名称" prop="name">
        <el-input v-model="form.name" placeholder="请填写权限名称" />
      </el-form-item>
      <el-form-item label="权限" prop="permissions">
        <el-tree
          ref="treeRef"
          :data="permissionData"
          style="max-width: 600px"
          node-key="id"
          show-checkbox
          :default-checked-keys="defaultKeys"
          :default-expanded-keys="[2]"
        />
      </el-form-item>
    </el-form>
    <template #footer>
      <div class="dialog-footer">
        <el-button type="primary" @click="confirm(formRef)">确认</el-button>
      </div>
    </template>
  </el-dialog>
</template>

<script setup>
import { Plus } from "@element-plus/icons-vue"
import { ref, reactive, onMounted, nextTick } from "vue"
import { userGetMenu, userSetMenu, menuList } from "../../../api"
import { useRoute } from "vue-router"
const route = useRoute()
onMounted(() => {
  // 菜单数据
  userGetMenu().then(({ data }) => {
    // console.log(data)
    permissionData.value = data.data
  })
  getListData()
})
// 列表数据
const tableData = reactive({ list: [], total: 0 })

// 打开弹窗
const open = (rowData = {}) => {
  dialogFormVisible.value = true
  // 弹窗打开form是异步的
  nextTick(() => {
    if (rowData) {
      const safeRowData = { ...rowData }
      Object.assign(form, {
        id: safeRowData.id,
        name: safeRowData.name,
        permissions: safeRowData.permissions,
      })
      treeRef.value.setCheckedKeys(rowData.permission)
    }
  })
}
const paginationData = reactive({
  pageNum: 1,
  pageSize: 10,
})

const handleSizeChange = (val) => {
  handleCurrentChange.pageSize = val
  getListData()
}
const handleCurrentChange = (val) => {
  handleCurrentChange.pageNum = val
  getListData()
}
// 请求列表数据
const getListData = () => {
  menuList(paginationData).then(({ data }) => {
    // console.log(data)
    const { list, total } = data.data
    tableData.list = list
    tableData.total = total
  })
}
const formRef = ref()
// form的数据
const form = reactive({
  name: "",
  permissions: "",
  id: "",
})
// 树型结构菜单权限
const permissionData = ref([])
// 控制弹窗显示隐藏
const dialogFormVisible = ref(false)
// 关闭弹窗的回调
const beforeClose = () => {
  dialogFormVisible.value = false
  // 重置表单
  formRef.value.resetFields()
  // 重置tree选择
  treeRef.value.setCheckedKeys(defaultKeys)
}
// 选中权限
const defaultKeys = [4, 5]
const treeRef = ref()
// 表单校验
const rules = reactive({
  name: [{ required: true, message: "请输入权限名称", trigger: "blur" }],
})
// 表单提交
const confirm = async (formEl) => {
  if (!formEl) return
  await formEl.validate((valid, fields) => {
    if (valid) {
      // 获取到选择的checkebox数据
      const permissions = JSON.stringify(treeRef.value.getCheckedKeys())
      userSetMenu({ name: form.name, permissions, id: form.id }).then(
        ({ data }) => {
          beforeClose()
          getListData()
        }
      )
    } else {
      console.log("error submit!", fields)
    }
  })
}
</script>

<style lang="less" scoped>
.btns {
  padding: 10px 0 10px 10px;
  background-color: #fff;
}
</style>
